June 16, 2013: Karli Redd was at the 107.9 Birthday Bash concert yesterday in Atlanta - and everyone who is everyone was there. Well Karli and her HIP HOP BF didn't look too happy with her new BOYFRIEND - rapper Roscoe Dash. The two, who began dating while filming Love And Hip Hop got into a HEATED argument while backstage.

And at one point - it appeared that Karli SLAPPED Roscoe Dash. Luckily for her, he didn't hit her back!!